Baby holding breath under water
Man experiencing cold water shock
Hey guys! I learned something very interesting today called the diving reflex. Basically, exposure to cold water around your nose and facial region triggers apnea (cessation of breathing) and bradycardia (slow heart rate). This is a reflex meant to protect us from aspiration of water during the initial stages of drowning. During this time, most of the blood flow is diverted to the brain, heart, and lungs until we resume breathing again.
This phenomenon is what makes babies hold their breaths and open their eyes when they are submerged in water. These babies above look like they know what they're doing under water but I'm sorry to say that it's a natural protective reflex! But they still look cute either way. Ciao until next time.
Pictures courtesy of: enquetemaken.be and Reuters